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首页> 外文期刊>Journal of plant nutrition and soil science >Effect of auxins on the native proteolytic activity of forest soils
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Effect of auxins on the native proteolytic activity of forest soils

机译：植物素对森林土天然蛋白水解活性的影响

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The soil proteolytic complex plays an important role within mineral nutrient cycling in ecosystems. Both auxins and proteases are produced by soil microbiota, and reciprocally, their activities affect the metabolic role of biota in soil. The objective of this study was to find out whether auxins (indole-3-acetic acid, indole-3-butyric acid, 1-naphthaleneacetic acid and 2-naphthoxyacetic acid) have a stimulatory or inhibitory effect on the activity of native proteases in soil. The results presented here demonstrate the positive effect of auxins on the native proteolytic forest soil activity. For example, in organic Oe horizons synthetically produced auxins stimulated native proteolytic activity in the European beech stands, where NOA led to the highest increase in L-tyrosine production (from 564.02 mu g at 0 mu g auxin to 645.19 mu g at the auxin dose of 100 mu g). Comparing organic and organomineral horizons, auxins promote a higher stimulation of protease activity in the organic horizons. Comparing the different forest stands, auxins promote a high stimulation of protease activity in European beech stands. In the organomineral soil horizons, auxins promote a high stimulation of protease activity in Leptosols in European beech stands and Cambisols in pedunculate oak stands. The results confirmed the interrelationships between auxins and the native proteolytic forest soil activity from the viewpoint of dead organic matter decomposition. Furthermore, the general importance of substances produced in the rhizosphere for nitrogen cycling was verified.
机译：土壤蛋白水解复合体在生态系统中矿物质循环中起重要作用。毒素和蛋白酶均由土壤微生物生成，并相互作用，其活性影响Biota在土壤中的代谢作用。本研究的目的是找出毒素（吲哚-3-乙酸，吲哚-3-丁酸，1-萘酰基酸和2-萘氧乙酸）对土壤中天然蛋白酶的活性有刺激或抑制作用。这里提出的结果证明了植物素对天然蛋白水解林土壤活性的积极作用。例如，在有机OE视野中，合成产生的植物蛋白刺激欧洲山毛榉的天然蛋白水解活性，其中NOA导致L-酪氨酸产生的最高增加（从564.02μg在0 mu g植物蛋白到645.19μg，在制冷剂量下为645.19μg。 100 mu g）。比较有机和有机胞质视野，毒素促进有机化环中蛋白酶活性的更高刺激。比较不同的森林展示，毒素促进欧洲山毛榉木蛋白酶活性的高刺激。在有机体土壤视野中，毒素促进欧洲山毛榉木底座乳酸溶液中蛋白酶活性的高刺激，在Pedunculate橡木架上的悬浮液中。结果证实了从死亡有机物质分解的观点来看毒素与天然蛋白水解林土壤活性之间的相互关系。此外，验证了根际生产中生成的物质的一般重要性。

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